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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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ed596cde94
This reverts commits9a036b93a3("x86/signal/64: Remove 'fs' and 'gs' from sigcontext") andc6f2062935("x86/signal/64: Fix SS handling for signals delivered to 64-bit programs"). They were cleanups, but they break dosemu by changing the signal return behavior (and removing 'fs' and 'gs' from the sigcontext struct - while not actually changing any behavior - causes build problems). Reported-and-tested-by: Stas Sergeev <stsp@list.ru> Acked-by: Andy Lutomirski <luto@amacapital.net> Cc: Ingo Molnar <mingo@kernel.org> Cc: stable@vger.kernel.org Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
80 lines
1.9 KiB
C
80 lines
1.9 KiB
C
#ifndef _ASM_X86_SIGCONTEXT_H
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#define _ASM_X86_SIGCONTEXT_H
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#include <uapi/asm/sigcontext.h>
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#ifdef __i386__
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struct sigcontext {
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unsigned short gs, __gsh;
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unsigned short fs, __fsh;
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unsigned short es, __esh;
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unsigned short ds, __dsh;
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unsigned long di;
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unsigned long si;
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unsigned long bp;
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unsigned long sp;
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unsigned long bx;
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unsigned long dx;
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unsigned long cx;
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unsigned long ax;
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unsigned long trapno;
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unsigned long err;
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unsigned long ip;
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unsigned short cs, __csh;
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unsigned long flags;
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unsigned long sp_at_signal;
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unsigned short ss, __ssh;
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/*
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* fpstate is really (struct _fpstate *) or (struct _xstate *)
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* depending on the FP_XSTATE_MAGIC1 encoded in the SW reserved
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* bytes of (struct _fpstate) and FP_XSTATE_MAGIC2 present at the end
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* of extended memory layout. See comments at the definition of
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* (struct _fpx_sw_bytes)
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*/
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void __user *fpstate; /* zero when no FPU/extended context */
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unsigned long oldmask;
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unsigned long cr2;
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};
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#else /* __i386__ */
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struct sigcontext {
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unsigned long r8;
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unsigned long r9;
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unsigned long r10;
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unsigned long r11;
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unsigned long r12;
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unsigned long r13;
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unsigned long r14;
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unsigned long r15;
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unsigned long di;
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unsigned long si;
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unsigned long bp;
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unsigned long bx;
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unsigned long dx;
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unsigned long ax;
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unsigned long cx;
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unsigned long sp;
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unsigned long ip;
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unsigned long flags;
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unsigned short cs;
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unsigned short gs;
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unsigned short fs;
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unsigned short __pad0;
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unsigned long err;
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unsigned long trapno;
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unsigned long oldmask;
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unsigned long cr2;
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/*
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* fpstate is really (struct _fpstate *) or (struct _xstate *)
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* depending on the FP_XSTATE_MAGIC1 encoded in the SW reserved
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* bytes of (struct _fpstate) and FP_XSTATE_MAGIC2 present at the end
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* of extended memory layout. See comments at the definition of
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* (struct _fpx_sw_bytes)
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*/
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void __user *fpstate; /* zero when no FPU/extended context */
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unsigned long reserved1[8];
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};
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#endif /* !__i386__ */
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#endif /* _ASM_X86_SIGCONTEXT_H */
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